expValueEntry
DISMAN-EXPRESSION-MIB ·
.1.3.6.1.2.1.90.1.3.1.1
Object
row
A single value from an evaluated expression. For a given
instance, only one 'Val' object in the conceptual row will be
instantiated, that is, the one with the appropriate type for
the value. For values that contain no objects of
expObjectSampleType 'deltaValue' or 'changedValue', reading a
value from the table causes the evaluation of the expression
for that value. For those that contain a 'deltaValue' or
'changedValue' the value read is as of the last sampling
interval.
If in the attempt to evaluate the expression one or more
of the necessary objects is not available, the corresponding
entry in this table is effectively not instantiated.
To maintain security of MIB information, when creating a new
row in this table, the managed system must record the security
credentials of the requester. These security credentials are
the parameters necessary as inputs to isAccessAllowed from
[RFC2571]. When obtaining the objects that make up the
expression, the system must (conceptually) use isAccessAllowed to
ensure that it does not violate security.
The evaluation of that expression takes place under the
security credentials of the creator of its expExpressionEntry.
To maintain security of MIB information, expression evaluation must
take place using security credentials for the implied Gets of the
objects in the expression as inputs (conceptually) to
isAccessAllowed from the Architecture for Describing SNMP
Management Frameworks. These are the security credentials of the
creator of the corresponding expExpressionEntry.
Context
- MIB
- DISMAN-EXPRESSION-MIB
- OID
.1.3.6.1.2.1.90.1.3.1.1- Type
- row
- Status
- current
- Parent
- expValueTable
- Table
- expValueTable
- Children
- 9
Syntax
No syntax metadata recorded.
Values & Constraints
No enumerated values or constraints recorded.
Related Objects
Child Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| expValueInstance The final instance portion of a value's OID according to
the wildcarding in instances of expObjectID for the
expression. The prefix of this OID fragment is 0.0,
leading to the fo… | column | ObjectIdentifier | .1.3.6.1.2.1.90.1.3.1.1.1 |
| expValueCounter32Val The value when expExpressionValueType is 'counter32'. | column | SNMPv2-SMICounter32 | .1.3.6.1.2.1.90.1.3.1.1.2 |
| expValueUnsigned32Val The value when expExpressionValueType is 'unsigned32'. | column | SNMPv2-SMIUnsigned32 | .1.3.6.1.2.1.90.1.3.1.1.3 |
| expValueTimeTicksVal The value when expExpressionValueType is 'timeTicks'. | column | SNMPv2-SMITimeTicks | .1.3.6.1.2.1.90.1.3.1.1.4 |
| expValueInteger32Val The value when expExpressionValueType is 'integer32'. | column | SNMPv2-SMIInteger32 | .1.3.6.1.2.1.90.1.3.1.1.5 |
| expValueIpAddressVal The value when expExpressionValueType is 'ipAddress'. | column | SNMPv2-SMIIpAddress | .1.3.6.1.2.1.90.1.3.1.1.6 |
| expValueOctetStringVal The value when expExpressionValueType is 'octetString'. | column | OctetString | .1.3.6.1.2.1.90.1.3.1.1.7 |
| expValueOidVal The value when expExpressionValueType is 'objectId'. | column | ObjectIdentifier | .1.3.6.1.2.1.90.1.3.1.1.8 |
| expValueCounter64Val The value when expExpressionValueType is 'counter64'. | column | SNMPv2-SMICounter64 | .1.3.6.1.2.1.90.1.3.1.1.9 |
Indexes
| Object | Type | Syntax | OID |
|---|---|---|---|
| expExpressionOwner The owner of this entry. The exact semantics of this
string are subject to the security policy defined by the
security administrator. | column | OctetString | .1.3.6.1.2.1.90.1.2.1.1.1 |
| expExpressionName The name of the expression. This is locally unique, within
the scope of an expExpressionOwner. | column | OctetString | .1.3.6.1.2.1.90.1.2.1.1.2 |
| expValueInstance The final instance portion of a value's OID according to
the wildcarding in instances of expObjectID for the
expression. The prefix of this OID fragment is 0.0,
leading to the fo… | column | ObjectIdentifier | .1.3.6.1.2.1.90.1.3.1.1.1 |